package days48;

import java.util.Collection;
import java.util.List;
import java.util.Scanner;


public class day38 {
    public static void main(String[] args) {
//        Scanner scanner = new Scanner(System.in);
//        int a = scanner.nextInt();
//        int b = scanner.nextInt();
//        String[][] arr = new String[a][b];
//        for (int i = 0; i < a; i++) {
//            for (int j = 0; j < b; j++) {
//                arr[i][j] = scanner.next();
//            }
//        }
        List list =null;
        System.out.println(isEmpty(list));
    }
    public static boolean isEmpty(Collection c) {
        return c == null || c.isEmpty();
    }
}
